Bestseller Foster seamlessly fits the private mercenaries from the first three Men Who Walk the Edge of Honor books into this volume while giving leading roles to bounty hunter Spencer Lark and rescued sex slave Arizona Storm, who played supporting roles in Savor the Danger. A vengeful survivor, Arizona makes it her life mission to stop human traffickers, even using herself as bait. Widowed Spencer works his way through grief as he tries to shield Arizona. But how can he protect a 21-year-old who thinks the best birthday present ever is a lethal knife she can tuck in the back of her jeans? Foster has an amazing ability to capture a man’s emotions and lust with sizzling sex scenes and meld it with a strong woman’s point of view. She draws a realistic picture of an evil world of human traffickers and makes the larger-than-life good guys believable, too. Agent: Karen Solem, Spencerhill Associates. (Apr.)